# FALL OF ROOF OR BACK
> MSHA accident `220050900039` · 03/24/2005 · Teck Cominco American Inc
## Details
- **Degree of injury:** NO DYS AWY FRM WRK,NO RSTR ACT
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Struck by flying object
- **Occupation:** Ledgeman/hand, Quarry man
- **Activity:** Drill face, Rib, Side, Down
- **Injury source:** CAVING ROCK,COAL,ORE,WSTE
- **Nature of injury:** CUT,LACER,PUNCT-OPN WOUND
- **Body part:** MOUTH/LIP/TEETH/TONGUE/THROAT/TASTE
- **Days lost:** 0
- **Mine experience:** 1.21 years
## Operator
- **Controller:** Teck Resources Limited
- **Operator:** Teck Cominco American Inc
- **Mine:** [4500366](https://api.ai-analytics.org/mine/4500366)
## Narrative

The employee's injury occurred when he was installing rockbolts with a jackleg. As the employee was drilling a bolt hole, a small piece of rock (approx 2"" x 2"") fell through the screened area of the back above the employee. The piece of rock struck the jackleg's rubber muffler then deflected striking the employee on his upper lip.

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*